diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/nexthop.c | 33 | ||||
| -rw-r--r-- | lib/nexthop.h | 4 |
2 files changed, 37 insertions, 0 deletions
diff --git a/lib/nexthop.c b/lib/nexthop.c index 5853884218..14486ea157 100644 --- a/lib/nexthop.c +++ b/lib/nexthop.c @@ -153,3 +153,36 @@ nexthops_free (struct nexthop *nexthop) nexthop_free (nh); } } + +const char * +nexthop2str (struct nexthop *nexthop, char *str, int size) +{ + switch (nexthop->type) + { + case NEXTHOP_TYPE_IFINDEX: + snprintf (str, size, "if %u", nexthop->ifindex); + break; + case NEXTHOP_TYPE_IPV4: + snprintf (str, size, "%s", inet_ntoa (nexthop->gate.ipv4)); + break; + case NEXTHOP_TYPE_IPV4_IFINDEX: + snprintf (str, size, "%s if %u", + inet_ntoa (nexthop->gate.ipv4), nexthop->ifindex); + break; + case NEXTHOP_TYPE_IPV6: + snprintf (str, size, "%s", inet6_ntoa (nexthop->gate.ipv6)); + break; + case NEXTHOP_TYPE_IPV6_IFINDEX: + snprintf (str, size, "%s if %u", + inet6_ntoa (nexthop->gate.ipv6), nexthop->ifindex); + break; + case NEXTHOP_TYPE_BLACKHOLE: + snprintf (str, size, "blackhole"); + break; + default: + snprintf (str, size, "unknown"); + break; + } + + return str; +} diff --git a/lib/nexthop.h b/lib/nexthop.h index 4445c4ad27..39e8b5425f 100644 --- a/lib/nexthop.h +++ b/lib/nexthop.h @@ -26,6 +26,9 @@ #include "prefix.h" +/* Maximum next hop string length - gateway + ifindex */ +#define NEXTHOP_STRLEN (INET6_ADDRSTRLEN + 30) + union g_addr { struct in_addr ipv4; struct in6_addr ipv6; @@ -97,4 +100,5 @@ void nexthops_free (struct nexthop *nexthop); extern const char *nexthop_type_to_str (enum nexthop_types_t nh_type); extern int nexthop_same_no_recurse (struct nexthop *next1, struct nexthop *next2); +extern const char * nexthop2str (struct nexthop *nexthop, char *str, int size); #endif /*_LIB_NEXTHOP_H */ |